Answer:
2x + y = 5
y = 4x – 1
Substitute (2, 1) into system, then:
2x + y = 5 => 2 x 2 + 1 = 5 => 5 = 5 (satisfied)
y = 4x– 1 => 4 x 2 - 1 = 1 => -7 = 1 (not satisfied)
=> Option 3 is correct.
Hope this helps!
:)
Answer:
20
Step-by-step explanation:
We already have our first value 3.4 and the second value 17. Let's assume the unknown value is Y which answer we will find out.
As we have all the required values we need, Now we can put them in a simple mathematical formula as below:
Step 1 ---> 3.4 = 17% × Y
Step 2 ---> 3.4 = 17/100 × Y
Multiplying both sides by 100 and dividing both sides of the equation by 17 we will arrive at:
Step 3 ---> Y = 3.4 × 100/17
Step 4 ---> Y = 3.4 × 100 ÷ 17
Step 5 ---> Y = 20
Finally, we have found the value of Y which is 20 and that is our answer.
<h3><u>
*You can easily calculate 3.4 is 17 percent of what number by using any regular calculator, simply enter 3.4 × 100 ÷ 17 and you will get your answer which is 20*</u></h3>
I got -12.9315 , idk if that's right , I just used my calculator
Answer:
10 + (-8)
Step-by-step explanation:
Subtracting is like adding a negative
10 -8
10 + (-8)
Answer:
The perimeter =72
The width = 16
The length = 20
Step-by-step explanation:
.A rectangle has 4 sides , so 72 divided by four is 18. The question is that the width is 4 less than the length. The difference between the length and the width is 4 so increase the length by 2 and decrease the width by 2. Now the numbers obtained are 16 ( 18 decreased by 2) and 20 (18 increased by 2). It is mentioned in the question that the width is less and length is more.
